The two singers put their rivalry aside to celebrate Drake's 30th, but don't expect selfies

There's nothing like the birthday party of a mutual friend to get you to put aside old feuds. Long-time rivals Katy Perry and Taylor Swift attended Drake's 30th birthday party yesterday, and proved that they can be in the same room without making a fuss. Praise be.

But it gets better. Photos show that John Mayer was there, too. To refresh your memory, Katy and Taylor have both dated John before. The recipe for drama was basically complete, and yet, nothing dramatic happened. There were no pictures of Taylor and Katy together, but everyone looked like they had a good time. And in case you missed it, it's also Katy's 32nd birthday today!